[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 494: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 113: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 113: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 5312: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3925)[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 5312: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3925)[phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 5312: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3925)How to migrate from MySQL to PostgreSQL? - Tiny Tiny RSS

While i've never felt the need to move from MySQL, Postgres' docs have a decent . Additionally I've had good luck using going from Oracle DB to MariaDB. I believe it supports PostgreSQL so you may want to give it a look.

I'm going to add that migrating is, in general, a bad idea. You should export/import your feeds using the built-in feature for this. There's also a plugin bundled with TT-RSS that will handle this for your starred articles.

Correct or not: Java to install on a system, for some reason I thought the migration project was last updated several years ago, so I was not sure it was up to date. Risk of having problems that cost me additional time in the end and doubting if migration created problems or if it has always been there.